Enjoy a completely new optical system. It was created exclusively for the Prostaff 7S series and succeeds in delivering sharp images of stunning quality. Waterproof and fog-free, it features an improved grip for a better handling in all kinds of weather. The Prostaff 7S is made for bird watching and wildlife observation. For that reason, viewing comfort was a key priority. A lot of attention went into details such as the knurling on the focusing ring, which makes adjusting the binocular easy and natural.